JP5849290B2 - Inner stopper and container with inner stopper - Google Patents

Description

  The present invention relates to an inner stopper and a container including the inner stopper.

  In order to discharge a liquid or fluid such as chemicals or lotion, and to discharge the liquid or fluid, a container in which an inner plug having a discharge portion is attached to the mouth of the container is used. In such a container, various forms have been used as a structure for discharging a liquid or the like from the discharge portion by applying a force to the inner plug. In particular, in the case of a container that discharges liquid or the like while pressing the distal end against the affected part or the like, a protruding member that contacts the affected part or the like may be provided at the distal end.

  For example, Patent Document 1 discloses an inner plug having a vertically movable nozzle member protruding from a spout, and when the nozzle member is pressed against an affected area, the nozzle member moves downward, A structure in which a chemical solution is discharged from a spout is disclosed. Patent Document 2 discloses a structure in which a valve mechanism including a slit is provided in a dome-shaped valve portion, and the slit is opened by pressing a protrusion provided in the center of the valve portion.

Japanese Patent Laid-Open No. 2008-143687 JP 2003-72816 A

  In the internal stopper using the nozzle that can move up and down as in Patent Document 1, there is a problem that the number of parts increases and the structure becomes complicated, and when the structure becomes complicated, there is a problem that the nozzle member does not move properly. there were.

  The structure of Patent Document 2 uses a structure in which the slit is opened by deforming the dome-shaped valve portion when a force is applied to the protrusion, so that a simpler structure than that of Patent Document 1 is realized. It is difficult to control the opening of the slit by the force applied to the. As a result, there is a risk that a large amount of liquid or the like called so-called “bottom drop” is suddenly ejected. Further, when the container falls down, a force is applied from the inside to the slit by the liquid, and the slit may be opened carelessly, which may cause liquid leakage.

  Accordingly, an object of the present invention is to provide an inner plug and a container including the inner plug, which can solve the conventional problems such as dropping of a bottle or leakage of liquid with a simpler structure than the conventional one.

  The inner plug of the present invention is a middle plug provided with a cylindrical main body portion and a tip portion provided at the upper end of the main body portion, and the tip portion has an annular edge that surrounds the recess and the recess on the upper surface. Provided on the lower surface thereof with a convex portion projecting downward toward the inside of the main body portion, and the tip portion is provided with a discharge portion composed of at least one slit penetrating from the concave portion to the convex portion. In the edge portion, two grooves are formed on the same straight line passing through the center of the annular edge portion so as to cut out the edge portion.

  Another aspect of the present invention is an inner plug including a cylindrical main body portion and a tip portion provided at an upper end of the main body portion, and the tip portion surrounds the recess and the recess on the upper surface. Discharge comprising an annular edge portion, a lower surface provided with a convex portion projecting downward toward the inside of the main body portion, and a tip portion including at least one slit penetrating from the concave portion to the convex portion A portion is provided, and at least one groove is formed in the edge portion so as to cut out the edge portion on a straight line passing through the center of the annular edge portion.

  It is preferable that when a force is applied to the tip portion from above, the slit is opened and functions as the discharge portion by being deformed so that the top surface of the tip portion is depressed by being induced by the groove.

  The concave portion preferably has a curved bottom surface, and the convex portion has a substantially dome shape.

  It is preferable that the main body portion has a step portion on an outer surface, and an upper step portion and a lower step portion having different wall thicknesses are formed by the step portion, and the upper step portion is thinner than the lower step portion.

  It is preferable to provide an attachment portion provided below the main body portion and used for attachment to the container.

  It is preferable that the tip portion, or the tip portion and the main body portion are formed of a material that can be elastically deformed.

  It is preferable to provide at least one longitudinal slit on the outer surface of the main body.

  The container according to the present invention is characterized by comprising the inner plug, wherein the inner plug has a container main body attached to the mouth, and a lid detachable from the container main body, and the lid includes the lid. It is preferable that a first protrusion is provided in contact with the recess of the inner plug when closed.

  Furthermore, the container has a container main body attached to the mouth portion, and a lid detachably attached to the container main body, and the lid presses a concave portion of the inner plug from above when the cover is closed. Two protrusions are preferably provided.

  It has a fixture for fixing the inner plug to the mouth of the container body, and the fixture has a cylindrical side surface and an upper surface having an opening in the center, on the inner peripheral surface of the side surface. Is formed with an engaging portion that engages with the outer peripheral surface of the mouth portion of the container main body, and the periphery of the opening on the upper surface is provided with a hook-like attachment portion provided on the inner plug from above to the upper end of the mouth portion. It is preferable that the inner plug is fixed by pressing.

  It is preferable that a third protrusion that presses the fixing tool from above when the lid is closed is provided in an annular shape inside the lid.

  By providing the above configuration, the inner plug of the present invention can apply a force to the tip portion to open the discharge portion to discharge liquid or the like in the container. When the force applied to the tip portion is adjusted, the discharge amount Therefore, it is possible to prevent dripping (a phenomenon in which the liquid is ejected from the ejection unit as one drop-like lump). In addition, the tip portion, or the tip portion and the main body portion are formed of a material that can be elastically deformed, so that the tip portion itself discharges and applies the liquid or fluid in the container. It becomes a contact surface for the affected part and the like, and a massage effect is produced. Furthermore, since the material is elastically deformable, deformation with respect to the force applied to the tip portion occurs smoothly, and the discharge portion can be opened and closed smoothly.

  In addition, when a force is applied from below to the convex portion projecting downward on the lower surface of the tip portion of the inner plug of the present invention, the convex portion is deformed in a direction in which the slit is closed and closely contacts, thereby bringing down the container. Leakage of liquid or fluid in the container can be prevented.

  By providing at least one longitudinal slit on the outer surface of the main body, the slit is opened when the inner plug is deformed, and the discharge amount is stabilized by communicating the inside and the outside of the main body, Furthermore, the deformation with respect to the force to the tip portion occurs more smoothly, and the discharge portion can be opened and closed more smoothly.

  As described above, the container of the present invention has the effect related to the inner plug of the present invention. In addition, the container of the present invention has a lid that can be attached to and detached from the container body, and by providing the lid with a first protrusion that contacts the recess of the inner plug when the lid is closed, leakage of liquid or the like can be prevented. Furthermore, by having a fixing tool for fixing the inner stopper to the mouth of the container body, the inner stopper can be removably attached to the container, and the liquid or fluid in the container can be easily replenished. Can do.

  Furthermore, the container has a container main body attached to the mouth portion, and a lid detachably attached to the container main body, and the lid presses a concave portion of the inner plug from above when the cover is closed. By providing the two protrusions, it is possible to prevent the discharge unit from being fixed by a liquid or the like. Moreover, it becomes possible to raise the sealing degree of the container reduced by the said 2nd protrusion by providing in the inside of the said lid the 3rd protrusion which presses the said fixing tool from upper direction when the said lid is closed. .

It is a perspective view of the inside plug of the present invention. It is sectional drawing of the two directions of an inside plug orthogonal to each other. It is a top view of an inside stopper. It is a front view of an inside stopper. (A), (b) is a cross-sectional view in two directions orthogonal to each other of the inner plug in a state where the discharge portion is open, (c) is a cross-sectional view showing a state in which force is applied to the convex portion of the inner plug is there. It is a top view of the inner stopper which shows three examples of a slit. The left half is a sectional view of the container of the present invention with the lid open, and the right half is a front view of the container. It is sectional drawing of the container of the state which closed the lid | cover. It is a perspective view of the inside plug at the time of making a groove | channel into one. It is a perspective view of another form of a stopper. It is sectional drawing of another form of inner stopper. It is a top view of another form of a stopper. It is a side view of another form of an inside stopper. It is a side view of the state where the inner plug of another form changed. It is sectional drawing of the container of another form of this invention of the state where the left half opened the lid, and the right half is a front view of a container. It is sectional drawing of the container of another form of the state which closed the lid | cover. It is sectional drawing of the container of another form of the state which closed the lid | cover.

  The inner stopper 1 and the container 11 of the present invention will be described in detail below with reference to the drawings. 1 to 6 are drawings relating to the inner stopper 1 of the present invention, and FIGS. 7 and 8 are drawings of the container 11 including the inner stopper 1.

  The inner plug 1 of the present invention is attached to the mouth of a container in order to discharge a liquid or fluid such as a medicine. As shown in FIGS. 1 to 4, the main body 3 and the main body 3 The tip part 2 which has the discharge part provided in the upper end of the is provided. The inside plug 1 has a hollow inside, the shape (outer shape) of the distal end portion 2 has a substantially truncated cone shape, and the shape of the main body portion 3 has a cylindrical shape. In the figure, the shapes of the tip portion 2 and the main body portion 3 are respectively substantially truncated cone and substantially cylindrical, but the shapes of the tip portion 2 and the main body portion 3 are not particularly limited thereto, and the tip portion The shape of the main body 3 is not particularly limited as long as the shape of the main body 3 is a hollow cylinder.

  The distal end portion 2 of the inner plug 1 has a concave portion 5 having a shape that expands upward as shown in FIG. 2 and a ring-shaped edge portion 6 surrounding the concave portion 5 at a location that becomes a substantially conical upper surface. It is formed, and the tip is formed in a concave shape. Although the bottom surface of the recess 5 is a curved surface in the drawing, it is not particularly limited to this shape. Two grooves 7 are formed in the edge 6 so as to cut out the edge 6 on the same straight line passing through the center of the edge 6. The groove 7 is provided for the purpose of inducing deformation of the tip 2 such that the upper surface of the tip 2 is bent with the groove 7 as a fold line when a force is applied to the tip 2 from above.

  The edge 6 has a shape divided into two by the two grooves 7 facing each other, and the groove 7 has a shape that leads from the inclined outer peripheral surface of the tip 2 to the recess 5. Yes. The shape of the groove 7 that cuts out the edge 6 (the cross-sectional shape of the groove in FIG. 2) may be set as appropriate, and is not particularly limited, such as a U-shape, a V-shape, or a modified shape thereof.

  A convex portion 8 is formed on the lower surface of the distal end portion 2 so as to protrude downward toward the inside of the main body portion 3 corresponding to the shape of the bottom surface of the concave portion 5. The convex portion 8 has a substantially dome shape, but is not particularly limited, and can be changed according to the shape of the bottom surface of the concave portion 5 or different from the shape of the bottom surface of the concave portion 5.

  A discharge portion including at least one slit 9 penetrating from the concave portion 5 to the convex portion 8 is formed at the distal end portion 2 of the inner plug 1. As shown in FIG. 3, the slit 9 is formed so that the planar shape thereof is a straight line on the bottom surface of the concave portion 5 (corresponding to the top surface of the convex portion 8 located inside the inner plug). When 9 opens, it becomes a discharge part for discharging liquid or the like. As an example, as shown in FIG. 3, one slit 9 is formed so as to be orthogonal to the straight line where the two grooves 7 are located. The slit 9 penetrates from the surface of the concave portion 5 to the surface of the convex portion 8, but is normally closed as shown in FIG.

  The inner plug 1 of the present invention is smoothly deformed when a force is applied to the distal end portion 2 so that liquid or the like can pass therethrough, and when the force is not applied, the discharge portion can smoothly move such that the liquid or the like cannot pass therethrough. In addition, at least the tip 2 is preferably formed of a material that can be elastically deformed, and it is more preferable that the main body 3 and the tip 2 are integrally formed of a material that can be elastically deformed. By integrally molding the main body portion 3 and the tip portion 2 with a material that can be elastically deformed, the number of parts of the inner plug is reduced, and it is possible to easily manufacture.

  As shown in FIG. 1, the main body portion 3 of the inner plug 1 is preferably provided with a stepped portion 18 on the outer surface, and an upper step portion 19 and a lower step portion 20 are formed by the stepped portion 18. In particular, when the tip 2 and the main body 3 are integrally formed of resin, the upper step 19 is thinner than the lower step 20 so that the upper step 19 The deformation can be facilitated, and further, when the tip portion 2 is excessively forced from above, the lower portion 20 can prevent the entire main body portion 3 from being crushed.

  The inner plug 1 may have an attachment portion 4 below the main body portion 3 in order to make the attachment to the container simple and reliable as required. The attachment part 4 can be formed in the form of a flange surrounding the lower outer periphery of the main body part 3, and the inner plug 1 is attached to a container using the attachment part 4. A recess 10 is formed in the attachment portion 4 so as to surround the main body portion 3, and the recess 10 is used for fixing the inner plug 1. A method of attaching the inner plug 1 to the container body will be described in detail later.

  Next, the opening / closing operation of the discharge part of the inner plug 1 will be described. In the state where no force is applied, the inner plug 1 is in a state in which the slit 9 is closed as shown in FIG. 2B, and in this state, liquid or the like can pass through the slit 9. Can not.

  When a force is applied from above to the distal end portion 2 of the inner plug 1 by pressing the distal end portion 2 against the affected area or the like, the force is applied because the inner plug 1 is formed of an elastically deformable material. The tip 2 is deformed. A force applied to the tip portion 2 from above acts on the edge portion 6. Subsequently, as shown in FIG. 5A, the two grooves 7 formed in the edge 6 function as a broken line, so that the two parts divided by the groove 7 of the edge 6 are mutually connected. The upper part of the tip 2 is deformed in the approaching direction. As a result, the tip 2 is deformed into a shape in which the center of the upper surface is depressed.

  When the tip portion 2 is deformed in this way, the dome-shaped convex portion 8 inside the tip portion 2 further protrudes downward in the tip portion 2 as shown in FIGS. 5 (a) to 5 (b). It deforms as follows. When the surface of the convex portion 8 is deformed so as to expand downward in this way, the slit 9 is pulled left and right on the convex portion 8 side, and gradually deforms in the direction of opening, as shown in FIG. As shown in b), the slit 9 is deformed into a substantially inverted V-shaped cross section having an open bottom.

  Thus, in a state where the slit 9 is deformed, liquid or the like can pass through the slit 9 from the main body 3 side, and the slit 9 functions as a discharge portion. When the application of the force from above to the distal end portion 2 is stopped, the deformation of the convex portion 8 is restored and the slit 9 is closed again, so that the discharge portion is closed and liquid or the like can pass therethrough. Disappear. Thus, the slit 9 functions as a valve that opens and closes by being deformed, and the discharge unit is opened and closed.

  It is preferable that the deformation of the inner plug 1 utilizes the characteristics of an elastically deformable material. Examples of the elastically deformable material include elastomer and silicon. From the viewpoint of the opening / closing operation of the slit 9, the elastomer and silicon are preferable, and silicon is particularly preferable.

  By using these materials, the inner plug 1 of the present invention is deformed by a constant amount up to a certain deformation amount, and when the predetermined deformation amount is exceeded, the degree of increase of the deformation amount is temporarily reduced, Again, the amount of deformation increases by a fixed amount. The force applied to the inner plug 1 is an operation of pressing the distal end portion 2 against the affected part as an actual operation, so that the amount of deformation of the distal end portion 2 changes at a certain point in time, Because the user feels a clear change, the user feels attentive (when the tip of the inner plug is pressed against the affected part, the tip is recessed and deformed, and the affected part is massaged by the user. Can be given, and a more effective massage feel by the tip 2 can be given. In this way, the inner plug 1 can effectively massage the affected area at the same time as discharging liquid or the like.

  When a force is applied to the distal end portion 2 from above, the inner plug 1 is deformed and the discharge portion is opened. Normally, however, since the slit 9 is closed, liquid or the like is externally discharged from the discharge portion. It becomes a structure which is not discharged.

  A structure for ensuring the sealing degree in the state where the slit 9 is closed will be described. When the liquid or the like in the container acts on the discharge part inside the inside plug 1 (this state occurs when the container falls down or the like), as shown by the arrow in FIG. A force acts on the surface of the convex portion 8 in the portion 2 by the liquid in the container.

  When the force in the direction of the arrow acts on the surface of the convex portion 8, the convex portion 8 has a dome shape that protrudes downward, so that the convex portion 8 is deformed in a direction in which the protruding amount decreases. To do. Due to the deformation of the convex portion 8, the slit 9 is deformed in a close contact and closing direction, so that the sealing degree of the discharge portion is increased and the liquid or the like is prevented from being discharged. Therefore, prevent the liquid from being accidentally discharged from the discharge part when the container is overturned or the container is turned downward without pressing the tip part against the affected part, and also prevents dropping of the liquid during use. Can do.

  The discharge amount from the discharge part using the slit 9 varies depending on the arrangement state and the number of the slits 9. FIG. 6 shows three types of slits 9. The slit 9 shown in FIG. 6A is different from FIG. 3 in the direction of the slit 9. In FIG. 3, the slits 9 are formed in a direction orthogonal to the two grooves 7, whereas in FIG. 6A, one slit 9 is formed on the same straight line as the two grooves 7.

  FIG. 6B shows a form in which two slits 9 are formed so as to be orthogonal to each other, and a shape in which the slits 9 described in FIG. 3 and FIG. 6A are combined. FIG. 6C shows a form in which three slits 9 are formed. Up to now, four forms of the slit 9 have been shown. The discharge amount of the discharge portion formed by such a slit 9 is shown in FIGS. 6 (a), 3, 6 (b), and 6 (c). ) In this order, the form of the slit 9 can be appropriately selected according to the required discharge amount. The form of the slit 9 described here is an example, and other arrangement states and numbers can be used.

  Next, the container 11 of the present invention will be described. The container 11 of the present invention has the inner plug 1 attached to the container main body 14, and can discharge liquid or the like in the container main body 14 using the inner plug 1. As shown in FIGS. 7 and 8, the inner plug 1 is attached to the container main body 14 using a fixture 12 at the mouth portion 13 fitted to the container main body 14, and the container 11 further includes a lid 15. have.

  The fixture 12 has a cylindrical side surface and an upper surface having an opening at the center. Further, the fixing member 12 is formed with an engaging portion that engages with the outer peripheral surface of the mouth portion 13 provided in the container main body 14 on the inner peripheral surface of the side surface, and the periphery of the opening on the upper surface is the center. It functions as a member that presses the mounting portion 4 of the stopper 1 from above. And the annular protrusion 17 which protrudes below is formed in the lower surface of the circumference | surroundings of the said opening, and the said protrusion 17 is inserted in the hollow 10 of the attachment part 4 of the said inner plug 1. As shown in FIG.

  A method of fixing the inner plug 1 by the fixing tool 12 will be described. The inner plug 1 is disposed at the upper end of the mouth portion 13, and the fixture 12 is engaged with the mouth portion 13 from above the inner stopper 1. At this time, the mounting portion 4 of the inner plug 1 is pressed from above by the fixing tool 12, and at the same time, the protrusion 17 of the fixing device 12 is inserted into the recess 10 of the mounting portion 4 from above. The inner plug 1 is fixed by the fixing tool 12. At this time, the distal end portion 2 of the inner plug 1 protrudes upward from the opening of the fixture 12. When the inner stopper 1 is fixed to the container main body 14 by the fixing tool 12 in this way, the inner plug 1 can discharge liquid or the like in the container main body 14 from the container 11. It is possible to use other methods for attaching the inner plug 1. For example, the inner plug 1 can be directly fitted into the container body 14 and fixed without using a fixture. . Other structures can also be used for the fixture.

  A lid 15 is used for the container 11. On the inner surface of the lid 15, there is a first protrusion 16 that protrudes downward in a substantially dome shape and is inserted into the recess 5 of the tip 2 of the inner plug 1. Is formed. As shown in FIG. 8, the first protrusion 16 is inserted into the concave portion 5 and comes into close contact with the surface of the concave portion 5 to close the discharge portion of the inner plug 1 when the lid 15 is closed. Produce. With the lid 15 having such a structure, the sealing state of the discharge portion of the inner plug 1 can be further improved, and the liquid in the container 1 can be reliably prevented from leaking out.

  As described above, the container 11 of the present invention including the inner plug 1 has a simpler structure than the conventional one and enhances the sealing degree, and has a massage function by the inner plug 1 while discharging liquid or the like. For example, when used as an application for a drug such as a hair restorer, it is possible to effectively massage the tip 2 while pressing the tip 2 of the inner plug 1 against the scalp and discharging the drug. In addition, it can also be used as a container for chemicals, cosmetics and the like that are required to be massaged while discharging liquid or the like to the affected area, and can be used for various other purposes.

  For the inner plug 1, the case where two grooves 7 are provided on the same straight line has been described, but it is also possible to have one groove 7. For example, FIG. 9 shows an inner plug 1 ′ having one groove 7 of the inner plug 1 shown in FIG. 1, but even in such a form, the upper surface of the distal end portion 2 is bent with the groove 7 as a broken line. It is possible to induce such deformation of the tip 2.

  Next, another embodiment of the inner plug 21 will be described. As shown in FIGS. 10 to 14, the inner plug 21 includes a main body part 23 and a tip part 22 having a discharge part provided at the upper end of the main body part 23. The inside plug 21 has a hollow inside, the shape (outer shape) of the tip portion 22 has a substantially truncated cone shape, and the shape of the main body portion 23 has a cylindrical shape.

  As shown in FIGS. 10 and 11, the distal end portion 22 of the inner plug 21 is formed with a concave portion 25 and an annular edge portion 26 surrounding the concave portion 25, as shown in FIGS. The tip is formed in a concave shape. As shown in FIG. 12, the edge 26 is formed with four grooves 27 so as to cut out the edge 26 on two straight lines orthogonal to each other at the center of the edge 26. As a result, the four grooves 27 are arranged at the edge portion 26 at equal intervals.

  A convex portion 28 that protrudes downward toward the inside of the main body portion 23 is formed on the lower surface of the distal end portion 22 corresponding to the shape of the bottom surface of the concave portion 25. Further, as shown in FIG. 12, the distal end portion 22 is provided with two slits 29 penetrating from the concave portion 25 to the convex portion 28 to form an ejection portion.

  When a force is applied to the distal end portion 22 of the inner plug 21 from above, the four grooves 27 formed in the edge portion 26 each function as a broken line, so that the edge portion 26 divided by the groove 27 The upper part of the tip 22 is deformed in a direction in which the four parts approach each other. As a result, as shown in FIG. 14, the tip portion 22 is deformed into a shape in which the center of the upper surface is recessed. The inner plug 21 is more easily deformed by providing four grooves 27 and forming the groove 27 with a wider width.

  When the distal end portion 22 is deformed, the dome-shaped convex portion 28 inside the distal end portion 22 is deformed so as to protrude downward in the distal end portion 22, and the slit 29 is pulled to the left and right on the convex portion 28 side. At the same time, the convex portion 28 is gradually deformed in a direction to open, so that liquid or the like can pass through the slit 29, and the slit 29 functions as a discharge portion. When the force from above on the distal end portion 22 is released, the deformation of the convex portion 28 is restored and the slit 29 is closed again, so that the discharge portion is closed and liquid or the like cannot pass therethrough. Thus, the slit 29 functions as a valve that opens and closes by being deformed, and the discharge unit is opened and closed.

  As shown in FIG. 12, the two slits 29 are arranged so as to be positioned on two straight lines formed by the four grooves 27 and orthogonal to each other. The slit 29 penetrates the surface of the convex portion 28 from the surface of the concave portion 25, but is normally closed.

  As shown in FIG. 10, the main body portion 23 of the inner plug 21 is provided with a stepped portion 38 on the outer surface, and an upper step portion 39 and a lower step portion 40 are formed by the stepped portion 38. One vertical slit 31 is provided in the upper step 39 of the outer surface of the main body 23. As shown in FIG. 10, the slit 31 is closed in a state where no force is applied to the distal end portion 22, and the force is applied to the distal end portion 22, so that the groove 27 is bent as shown in FIG. The slit 31 is opened to allow the inside and the outside of the main body portion 23 to communicate with each other.

  By opening and closing the slit 31, the inner plug 21 communicates the inside and outside of the main body portion 23, thereby generating pressure between the inside and outside of the main body portion 23 that is generated when liquid is discharged from the discharge portion. By eliminating the difference and facilitating the discharge of the liquid, the discharge amount is stabilized, and in addition to the deformation of the tip portion 22, the main body portion 23 is also easily deformed, and the deformation of the inner plug 21 is smoother. Occurs, and the opening and closing of the discharge part is smooth.

  As shown in FIG. 13, the slit 31 is provided at the lower end portion 22 of one of the four groove portions 27, so that the slit 31 can be opened and closed by deformation of the upper groove portion 27. It is easy. However, the position of the slit 31 is not limited to this, and can be changed to another position as long as it is the outer surface of the main body 23, and the number thereof is also limited to one. It is also possible to use a plurality of them. Furthermore, although it has been described that the slit 31 is provided in the vertical direction, the vertical direction is not limited to the vertical direction, but includes a slanted state excluding the horizontal direction, and includes a left-right direction with respect to the vertical direction. It is also possible to incline within a range of 45 °.

  As shown in FIG. 10, the inner plug 21 has an attachment portion 24 for use in attachment to a container below the main body portion 23. The mounting portion 24 is formed in the form of a flange surrounding the lower outer periphery of the main body portion 23. A recess 30 is formed in the mounting portion 24 so as to surround the main body portion 23, and the recess 30 is used for fixing the inner plug 21.

  When a force is applied to the distal end portion 22 from above, the inner plug 21 is deformed and the discharge portion is opened, and at the same time, the slit 31 is deformed and opened. However, since the slit 29 and the slit 31 are normally closed, the liquid or the like is not discharged from the discharge portion and the slit 31 to the outside.

  Next, the container 41 using the inner plug 21 will be described. As shown in FIGS. 15 and 16, the container 41 has the inner stopper 21 attached to the container main body 44, and can discharge liquid or the like in the container main body 44 using the inner stopper 21. it can. As shown in FIGS. 15 and 16, the inner plug 21 is attached to the container main body 44 using a fixture 42 at the mouth 43 fitted to the container main body 44, and the container 41 is further covered with a lid 45. have.

  The fixture 42 has a cylindrical side surface and an upper surface having an opening at the center, and an engaging portion that engages with the outer peripheral surface of the mouth portion 43 is formed. It functions as a member that presses the mounting portion 24 of the stopper 21 from above. An annular protrusion 47 projecting downward is formed on the lower surface around the opening, and the protrusion 47 is inserted into the recess 30 of the mounting portion 24 of the inner plug 21.

  When the inner plug 21 is disposed at the upper end of the mouth portion 43 and the fixing tool 42 is engaged with the mouth portion 43 from above the inner plug 21, the mounting portion 24 of the inner stopper 21 is attached to the fixing tool 42. At the same time, the protrusion 47 of the fixture 42 is inserted into the recess 30 of the mounting portion 24 from above, and the inner plug 21 is fixed by the fixture 42.

  A lid 45 is used for the container 41. On the inner surface of the lid 45, a second projection 48 projecting downward is formed to press the concave portion 25 of the distal end portion 22 of the inner plug 21 from above. ing. When the lid 45 is closed, the second protrusion 48 presses and deforms the concave portion 25 from above to make the slit 29 slightly open at the bottom, as shown in FIG. As described above, when the lid 45 is closed, the slit 29 is not in a close contact state but is slightly opened at the lower side. This prevents the slit 29 from being fixed by liquid or the like inside the container 41. It is possible to open and close the discharge part more smoothly.

  Therefore, since the sealing degree of the slit 29 decreases, an annular third protrusion 49 is provided inside the lid 45 in order to increase the sealing degree of the container 41 when the lid 45 is closed. The third protrusion 49 extends downward from the inner upper surface of the lid 45 and has a cylindrical shape. When the lid 45 is closed, the third protrusion 49 is fixed as shown in FIG. The tool 42 is pressed from above, and the space between the lid 45 and the inner plug 21 is sealed. Even when the liquid leaks from the slit 29, the liquid is blocked by the third protrusion 49, and it is possible to prevent the liquid from leaking to the outside.

  FIG. 17 shows another form of the annular third protrusion 49 for enhancing the sealing degree of the container 41 when the lid 45 is closed. FIG. 17 shows that the shape of the inside of the lid 45 ′ is formed in accordance with the shape of the container 41, and the third protrusion 49 ′ does not extend downward from the upper surface of the lid ceiling. The lid 45 'protrudes slightly downward from the surface facing the fixture 42, and is formed in an annular shape. When the lid 45 ′ is closed, the third protrusion 49 ′ presses the fixture 42 from above as shown in FIG. 17 and seals the space between the lid 45 ′ and the inner plug 21. . Further, the lid 45 ′ is provided with another third projection 50. When the lid 45 ′ is closed, the third projection 50 opens the mouth portion 43 from above as shown in FIG. The space between the lid 45 'and the inner plug 21 can be further sealed by pressing.

1,21 Inner plug 2,22 Tip 3,23 Body 4,24 Mounting 5,25 Concave 6,26 Edge 7,27 Groove 8,28 Convex 9,29 Slit 10,30 Dimple 11,41 Container 12, 42 Fixing tool 13, 43 Mouth part 14, 44 Container body 15, 45, 45 'Lid 16 First protrusion 17, 47 Projection 18, 38 Step part 19, 39 Upper part 20, 40 Lower part 31 Vertical slit 48 2nd protrusion 49, 49 ', 50 3rd protrusion

Claims (12)

A tubular main body, and an inner plug provided with a tip provided at the upper end of the main body,
The tip portion includes a concave portion on the upper surface and an annular edge portion surrounding the concave portion, and includes a convex portion projecting downward toward the inside of the main body portion on the lower surface, and the convex portion extends from the concave portion to the convex portion. A discharge portion composed of at least one slit penetrating to the edge, and the edge portion includes two grooves so as to cut out the edge portion on the same straight line passing through the center of the annular edge portion. Is formed ,
When a force is applied to the tip portion from above, the slit is opened and functions as the discharge portion by being deformed so that the upper surface of the tip portion is depressed in the center by being induced by the groove. Inner plug. A tubular main body, and an inner plug provided with a tip provided at the upper end of the main body,
The tip portion includes a concave portion on the upper surface and an annular edge portion surrounding the concave portion, and includes a convex portion projecting downward toward the inside of the main body portion on the lower surface, and the convex portion extends from the concave portion to the convex portion. A discharge portion comprising at least one slit penetrating into the edge, and at least one groove is formed on the edge portion so as to cut out the edge portion on a straight line passing through the center of the annular edge portion; Is formed ,
When a force is applied to the tip portion from above, the slit is opened and functions as the discharge portion by being deformed so that the upper surface of the tip portion is depressed in the center by being induced by the groove. Inner plug. The inner plug according to claim 1 or 2 , wherein the concave portion has a curved bottom surface, and the convex portion has a substantially dome shape. The main body has a stepped portion on an outer surface, and the stepped portion forms an upper stepped portion and a lower stepped portion having different wall thicknesses, and the upper stepped portion is thinner than the lower stepped portion. The inner plug according to any one of claims 1 to 3 . The inside plug according to any one of claims 1 to 4 , further comprising an attachment portion provided below the main body portion and used for attachment to a container. The inner plug according to any one of claims 1 to 5 , wherein the distal end portion, or the distal end portion and the main body portion are made of an elastically deformable material. The inside plug according to any one of claims 1 to 6 , wherein at least one longitudinal slit is provided on an outer surface of the main body. A container comprising the inner stopper according to any one of claims 1 to 7 . The container has a container main body with the inner plug attached to the mouth, and a lid detachable from the container main body, and the lid is provided with a first protrusion that comes into contact with the recess of the inner plug when the cover is closed. The container according to claim 8 , wherein A container main body with the inner plug attached to the mouth, and a lid detachable from the container main body, and the lid has a second protrusion for pressing the concave portion of the inner plug from above when the lid is closed. The container according to claim 8 , wherein the container is provided. A fixing tool for fixing the inner stopper to the mouth of the container body;
The fixture has a cylindrical side surface and an upper surface having an opening at the center, and an engagement portion that engages with an outer peripheral surface of the mouth portion of the container body is formed on the inner peripheral surface of the side surface, around the opening of the upper surface, to claim 9 or 10 wherein in stoppered pressed against the upper end of the mouth portion of the flange-shaped mounting portion provided in said stopper from above, characterized in that it is fixed Container as described. The container according to claim 11 , wherein a third protrusion that presses the fixture from above when the lid is closed is provided in an annular shape inside the lid.